Portable electronic device for stimulating muscle contraction



FIG. 1 is a rear view of a portable electronic device for stimulating muscle contraction according to the present invention;

FIG. 2 is a rear perspective view;

FIG. 3 is a bottom view;

FIG. 4 is a front view;

FIG. 5 is a left side view;

FIG. 6 is a right side view; and,

FIG. 7 is a top view. 

CLAIM The ornamental design for as portable electronic device for stimulating muscle contraction, as shown. 